package com.qd.pay.service;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.cdqidi.constant.ConstantDto;
import com.cdqidi.db.BaseService;
import com.cdqidi.dto.CacheKey;
import com.cdqidi.exception.ApiException;
import com.cdqidi.util.RedisTemplateUtil;
import com.qd.pay.domain.OrderExtendedDTO;
import com.qd.pay.mapper.OrderExtendedMapper;
import com.qd.pay.model.OrderExtended;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.util.StringUtils;

import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.Optional;

import static java.util.stream.Collectors.toList;

/**
 * 扩展参数
 *
 * @author sjk
 */
@RequiredArgsConstructor
@Service
@Slf4j
public class OrderExtendedService extends BaseService<OrderExtendedMapper, OrderExtended> {

    private static final String PREFIX_ID = "sys_order_extended_orderId_{0}";

    private final RedisTemplateUtil<OrderExtended> redisTemplateUtil;

    /**
     * 保存
     *
     * @param dto 页面对象
     */
    @Transactional(rollbackFor = Exception.class)
    public void save(OrderExtendedDTO dto) {
        final OrderExtended model = dtoToModel(dto);
        try {
            if (super.save(model)) {
                getById(dto.getOrderId());
                return;
            }
            throw new ApiException("添加失败");
        } finally {
            clearCache(model);
            model.freeData();
        }
    }

    @Transactional(readOnly = true)
    public String getAttach(String orderId) {
        return Optional.ofNullable(getById(orderId)).map(OrderExtended::getAttach).orElse(null);
    }

    /**
     * 根据传入对象构建查询参数，判断是否存在
     *
     * @param dto 参数
     * @return 存在为true
     */
    @Transactional(readOnly = true)
    public Boolean isExists(OrderExtendedDTO dto) {
        final QueryWrapper<OrderExtended> queryWrapper = createQueryWrapper(dto);
        final boolean exists = super.count(queryWrapper) > 0;
        queryWrapper.clear();
        return exists;
    }

    /**
     * 根据主键判断数据是否存在
     *
     * @param orderId 主键
     * @return 存在为true
     */
    @Transactional(readOnly = true)
    public Boolean isExistsById(String orderId) {
        boolean exists = false;
        if (StringUtils.hasLength(orderId)) {
            final OrderExtended model = getById(orderId);
            exists = (null != model);
            if (exists) {
                model.freeData();
            }
        }
        return exists;
    }

    /**
     * 根据主键获取数据
     *
     * @param orderId 主键
     * @return 单条记录
     */
    @Transactional(readOnly = true)
    public OrderExtended getById(String orderId) {
        final String key = RedisTemplateUtil.getRedisCacheKey(PREFIX_ID, orderId);
        return redisTemplateUtil.get(new CacheKey().setKey(key).setTimeout(ConstantDto.REDIS_TIME_OUT_DAY), () -> super.getById(orderId), OrderExtended.class);
    }

    /**
     * 根据主键获取数据
     *
     * @param orderId 主键
     * @return 单条记录，转换成页面对象
     */
    @Transactional(readOnly = true)
    public OrderExtendedDTO getByIdDto(String orderId) {
        return Optional.ofNullable(getById(orderId)).map(this::modelToDto).orElse(null);
    }

    /**
     * 根据条件查询单条数据
     *
     * @param dto 查询参数
     * @return 单条记录
     */
    @Transactional(readOnly = true)
    public OrderExtended getOne(OrderExtendedDTO dto) {
        final QueryWrapper<OrderExtended> queryWrapper = createQueryWrapper(dto);
        OrderExtended model = super.getOne(queryWrapper);
        queryWrapper.clear();
        return model;
    }

    /**
     * 根据条件查询单条数据
     *
     * @param dto 查询参数
     * @return 单条记录，转换成页面对象
     */
    @Transactional(readOnly = true)
    public OrderExtendedDTO getOneDto(OrderExtendedDTO dto) {
        return Optional.ofNullable(getOne(dto)).map(this::modelToDto).orElse(null);
    }

    /**
     * 根据条件查询列表数据
     *
     * @param dto 查询参数
     * @return 列表数据
     */
    @Transactional(readOnly = true)
    public List<OrderExtended> getList(OrderExtendedDTO dto) {
        final QueryWrapper<OrderExtended> queryWrapper = createQueryWrapper(dto);
        final List<OrderExtended> list = super.list(queryWrapper);
        queryWrapper.clear();
        return list;
    }

    /**
     * 根据条件查询列表数据
     *
     * @param dto 查询参数
     * @return 列表数据，转换成页面对象
     */
    @Transactional(readOnly = true)
    public List<OrderExtendedDTO> getListDto(OrderExtendedDTO dto) {
        return modelToDtoList(getList(dto));
    }

    /**
     * 分页数据
     *
     * @param page 分页对象
     * @param dto  查询参数
     * @return 分页信息
     */
    @Transactional(readOnly = true)
    public IPage<OrderExtendedDTO> page(Page<OrderExtended> page, OrderExtendedDTO dto) {
        final QueryWrapper<OrderExtended> queryWrapper = createQueryWrapper(dto, "t1.");
        final IPage<OrderExtendedDTO> iPage = baseMapper.page(page, queryWrapper);
        queryWrapper.clear();
        return iPage;
    }

    /**
     * 清空缓存
     *
     * @param model 数据库对象
     */
    public void clearCache(OrderExtended model) {
        if (null == model) {
            return;
        }
        redisTemplateUtil.deleteByKey(RedisTemplateUtil.getRedisCacheKey(PREFIX_ID, model.getOrderId()));
    }

    /**
     * 批量清空缓存
     *
     * @param list 数据库对象
     */
    public void clearCaches(List<OrderExtended> list) {
        if (null == list || list.isEmpty()) {
            return;
        }
        List<String> ids = list.stream().map(model -> RedisTemplateUtil.getRedisCacheKey(PREFIX_ID, model.getOrderId())).collect(toList());
        if (!ids.isEmpty()) {
            redisTemplateUtil.deleteByKey(ids);
            ids.clear();
        }
    }

    /**
     * 数据库对象转页面对象
     *
     * @param model 数据库对象
     * @return 页面对象
     */
    public OrderExtendedDTO modelToDto(OrderExtended model) {
        if (null == model) {
            return null;
        }
        final OrderExtendedDTO dto = new OrderExtendedDTO();
        dto.setOrderId(model.getOrderId());
        dto.setAttach(model.getAttach());
        buildDisplay(dto);
        return dto;
    }

    /**
     * 页面对象转数据库对象
     *
     * @param dto 页面对象
     * @return 数据库对象
     */
    public OrderExtended dtoToModel(OrderExtendedDTO dto) {
        if (null == dto) {
            return null;
        }
        final OrderExtended model = new OrderExtended();
        model.setOrderId(dto.getOrderId());
        model.setAttach(dto.getAttach());
        return model;
    }

    /**
     * 码表转换
     *
     * @param dto 页面对象
     */
    public void buildDisplay(OrderExtendedDTO dto) {

    }

    /**
     * 数据库对象转页面对象
     *
     * @param list 数据库对象
     * @return 页面对象
     */
    public List<OrderExtendedDTO> modelToDtoList(List<OrderExtended> list) {
        return Optional.ofNullable(list).orElse(Collections.emptyList()).stream().map(this::modelToDto).collect(toList());
    }

    /**
     * 页面对象转数据库对象
     *
     * @param list 页面对象
     * @return 数据库对象
     */
    public List<OrderExtended> dtoToModelList(List<OrderExtendedDTO> list) {
        return Optional.ofNullable(list).orElse(Collections.emptyList()).stream().map(this::dtoToModel).collect(toList());
    }

    /**
     * 拼装查询参数，除了主键的其他字段会自动加入进来
     *
     * @param dto 查询参数，不为空的属性会被自动加入
     */
    public QueryWrapper<OrderExtended> createQueryWrapper(OrderExtendedDTO dto) {
        return createQueryWrapper(dto, "");
    }

    /**
     * 拼装查询参数，除了主键的其他字段会自动加入进来
     *
     * @param dto        查询参数，不为空的属性会被自动加入
     * @param tableAlias 表别名
     */
    public QueryWrapper<OrderExtended> createQueryWrapper(OrderExtendedDTO dto, String tableAlias) {
        final QueryWrapper<OrderExtended> queryWrapper = new QueryWrapper<>();
        if (null != dto) {
            if (StringUtils.hasLength(tableAlias) && tableAlias.charAt(tableAlias.length() - 1) != '.') {
                tableAlias += ".";
            }
            if (StringUtils.hasLength(dto.getAttach())) {
                queryWrapper.eq(tableAlias + "attach", dto.getAttach());
            }
        }
        return queryWrapper;
    }

    /**
     * 批量检查主键在数据库中是否存在
     *
     * @param ids 主键集合
     * @return 主键查询出来的集合
     */
    public List<OrderExtended> checkIds(List<String> ids) {
        if (null == ids || ids.isEmpty()) {
            throw new ApiException("ids不能为空");
        }
        final List<OrderExtended> list = super.listByIds(ids);
        if (list.isEmpty()) {
            throw new ApiException("ids不存在" + Arrays.toString(ids.toArray()));
        }
        if (ids.size() == list.size()) {
            return list;
        }
        List<String> dbIds = list.stream().map(OrderExtended::getOrderId).collect(toList());
        final List<String> notExistsList = ids.stream().filter(id -> !dbIds.contains(id)).collect(toList());
        dbIds.clear();
        if (!notExistsList.isEmpty()) {
            throw new ApiException("ids不存在" + Arrays.toString(notExistsList.toArray()));
        }
        return list;
    }
}